From: Namhyung Kim <namhyung@gmail.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
containers@lists.linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] memcg: move page-freeing code outside of lock
Date: Tue, 22 Mar 2011 12:04:39 +0900 [thread overview]
Message-ID: <1300763079.1483.21.camel@leonhard> (raw)
In-Reply-To: <20110322085938.0691f7f4.kamezawa.hiroyu@jp.fujitsu.com>
2011-03-22 (화), 08:59 +0900, KAMEZAWA Hiroyuki:
> On Fri, 18 Mar 2011 21:54:15 +0900
> Namhyung Kim <namhyung@gmail.com> wrote:
>
> > Signed-off-by: Namhyung Kim <namhyung@gmail.com>
> > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> What is the benefit of this patch ?
>
> -Kame
>
Oh, I just thought generally it'd better call such a (potentially)
costly function outside of locks and it could reduce few of theoretical
contentions between swapons and/or offs. If it doesn't help any
realistic cases I don't mind discarding it.
Thanks.
--
Regards,
Namhyung Kim
WARNING: multiple messages have this Message-ID (diff)
From: Namhyung Kim <namhyung@gmail.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
containers@lists.linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] memcg: move page-freeing code outside of lock
Date: Tue, 22 Mar 2011 12:04:39 +0900 [thread overview]
Message-ID: <1300763079.1483.21.camel@leonhard> (raw)
In-Reply-To: <20110322085938.0691f7f4.kamezawa.hiroyu@jp.fujitsu.com>
2011-03-22 (i??), 08:59 +0900, KAMEZAWA Hiroyuki:
> On Fri, 18 Mar 2011 21:54:15 +0900
> Namhyung Kim <namhyung@gmail.com> wrote:
>
> > Signed-off-by: Namhyung Kim <namhyung@gmail.com>
> > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> What is the benefit of this patch ?
>
> -Kame
>
Oh, I just thought generally it'd better call such a (potentially)
costly function outside of locks and it could reduce few of theoretical
contentions between swapons and/or offs. If it doesn't help any
realistic cases I don't mind discarding it.
Thanks.
--
Regards,
Namhyung Kim
--
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next prev parent reply other threads:[~2011-03-22 3:04 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-18 12:54 [PATCH 1/3] memcg: mark init_section_page_cgroup() properly Namhyung Kim
2011-03-18 12:54 ` Namhyung Kim
2011-03-18 12:54 ` [PATCH 2/3] memcg: fix off-by-one when calculating swap cgroup map length Namhyung Kim
2011-03-18 12:54 ` Namhyung Kim
[not found] ` <1300452855-10194-2-git-send-email-namhyung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-21 23:58 ` KAMEZAWA Hiroyuki
2011-03-21 23:58 ` KAMEZAWA Hiroyuki
2011-03-21 23:58 ` KAMEZAWA Hiroyuki
[not found] ` <20110322085844.31041d40.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2011-03-22 3:13 ` Balbir Singh
2011-03-22 3:13 ` Balbir Singh
2011-03-22 3:13 ` Balbir Singh
2011-03-18 12:54 ` [PATCH 3/3] memcg: move page-freeing code outside of lock Namhyung Kim
2011-03-18 12:54 ` Namhyung Kim
[not found] ` <1300452855-10194-3-git-send-email-namhyung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-21 23:59 ` KAMEZAWA Hiroyuki
2011-03-21 23:59 ` KAMEZAWA Hiroyuki
2011-03-21 23:59 ` KAMEZAWA Hiroyuki
[not found] ` <20110322085938.0691f7f4.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2011-03-22 3:04 ` Namhyung Kim
2011-03-22 3:04 ` Namhyung Kim [this message]
2011-03-22 3:04 ` Namhyung Kim
2011-03-22 3:09 ` Balbir Singh
2011-03-22 3:09 ` Balbir Singh
2011-03-22 3:09 ` Balbir Singh
2011-03-22 4:56 ` KAMEZAWA Hiroyuki
2011-03-22 4:56 ` KAMEZAWA Hiroyuki
2011-03-22 4:56 ` KAMEZAWA Hiroyuki
2011-03-22 10:06 ` Namhyung Kim
2011-03-22 10:06 ` Namhyung Kim
2011-03-23 4:36 ` KAMEZAWA Hiroyuki
2011-03-23 4:36 ` KAMEZAWA Hiroyuki
2011-03-23 4:36 ` KAMEZAWA Hiroyuki
[not found] ` <20110323133614.95553de8.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2011-03-23 11:59 ` [PATCH] memcg: move page-freeing code out " Namhyung Kim
2011-03-23 11:59 ` Namhyung Kim
2011-03-23 11:59 ` Namhyung Kim
[not found] ` <1300881558-13523-1-git-send-email-namhyung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-23 23:37 ` KAMEZAWA Hiroyuki
2011-03-23 23:37 ` KAMEZAWA Hiroyuki
2011-03-23 23:37 ` KAMEZAWA Hiroyuki
[not found] ` <20110322135619.90593f5d.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2011-03-22 10:06 ` [PATCH 3/3] memcg: move page-freeing code outside " Namhyung Kim
2011-03-21 23:57 ` [PATCH 1/3] memcg: mark init_section_page_cgroup() properly KAMEZAWA Hiroyuki
2011-03-21 23:57 ` KAMEZAWA Hiroyuki
2011-03-22 3:10 ` Balbir Singh
2011-03-22 3:10 ` Balbir Singh
[not found] ` <20110322085755.c4193fc1.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2011-03-22 3:10 ` Balbir Singh
[not found] ` <1300452855-10194-1-git-send-email-namhyung-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-03-18 12:54 ` [PATCH 2/3] memcg: fix off-by-one when calculating swap cgroup map length Namhyung Kim
2011-03-18 12:54 ` [PATCH 3/3] memcg: move page-freeing code outside of lock Namhyung Kim
2011-03-21 23:57 ` [PATCH 1/3] memcg: mark init_section_page_cgroup() properly KAMEZAWA Hiroyuki
2011-04-01 1:18 ` Namhyung Kim
2011-04-01 1:18 ` Namhyung Kim
2011-04-01 1:18 ` Namhyung Kim
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